CN111229822A - Soil remediation method - Google Patents
Soil remediation method Download PDFInfo
- Publication number
- CN111229822A CN111229822A CN201811440199.4A CN201811440199A CN111229822A CN 111229822 A CN111229822 A CN 111229822A CN 201811440199 A CN201811440199 A CN 201811440199A CN 111229822 A CN111229822 A CN 111229822A
- Authority
- CN
- China
- Prior art keywords
- soil
- parts
- wave band
- wafer
- recited
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Mycology (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Cultivation Of Plants (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of soil treatment, in particular to a method for restoring soil, which comprises the following steps: (1) collecting a soil sample, and manually removing weeds, shrubs and stone sundries in the soil; (2) spraying an activating agent and a microbial fermentation inoculant on the surface of the soil in the step (1), and then sequentially crushing, stirring, drying and sieving the soil; (3) irradiating the sieved soil for 20-30 min by using an LED illuminator, turning the soil once every 1-2 min, and adopting a blue light wafer with a wave band of 435-440 nm, a yellow light wafer with a wave band of 565-575 nm and a red light wafer with a wave band of 630-645 nm as lamp caps of LED lamps; according to the invention, the LED lamp is adopted to irradiate the soil, so that the activity of beneficial bacteria in the soil, such as bacillus, actinomycetes and methanobacterium who decompose organic matters and proteins, can be improved, the beneficial bacteria can quickly decompose pollutants, and the improvement of soil fertility is accelerated.
Description
Technical Field
The invention relates to the technical field of soil treatment, in particular to a method for restoring soil.
Background
Soil is a loose layer of material on the earth's surface, consisting of various granular minerals, organic substances, moisture, air, microorganisms, etc., and capable of growing plants. The soil is composed of mineral substances formed by rock weathering, animals and plants, organic matters generated by decomposition of microorganism residues, soil organisms, moisture, air, oxidized humus and the like. Soil is a core medium of the environment, is an indispensable renewable resource, and is also an important medium condition for human beings and many organisms to live. The quality of the soil environment directly influences the quality of agricultural and sideline products and further influences the health of human beings.
With the increase of population and the acceleration of industrialization process, the pollution of industrial three wastes, fertilizers and pesticides becomes more serious, and the quality of farmland soil is gradually degraded. The soil pollution problem has become one of the major problems that endanger the global environmental quality and human survival and development. For example, soil hardening, difficult root extension, weak rooting force, difficult seedling recovery, reduced absorption function due to root dysplasia, weak growth, reduced yield and reduced soil ecological function; the beneficial microbial population in the soil changes, the growth of the individual bacteria is reduced, the growth and reproduction speed is reduced, and the quantity of main microorganisms such as paenibacillus, actinomycetes, methanobacterium and related fungi for decomposing organic matters and proteins is reduced, so that the virtuous cycle of nutrient elements is influenced, and the yield of agriculture is reduced; the heavy metal content in the soil is increased, and the activity is improved, so that the crops growing on the soil have great edible safety. Therefore, under the current pursuit of green, health and environmental protection, an efficient soil remediation method is developed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for repairing soil.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a method of remediating soil comprising the steps of:
(1) collecting a soil sample, and manually removing weeds, shrubs and stone sundries in the soil;
(2) spraying an activating agent and a microbial fermentation inoculant on the surface of the soil in the step (1), and then sequentially crushing, stirring, drying and sieving the soil;
(3) and (3) irradiating the sieved soil for 20-30 min by using an LED illuminator, turning the soil once every 1-2 min, wherein a lamp cap of the LED lamp adopts a blue light wafer with a wave band of 435-440 nm, a yellow light wafer with a wave band of 565-575 nm and a red light wafer with a wave band of 630-645 nm.
Preferably, the activating agent in the step (2) is a mixture of tetrasodium glutamate diacetate, citric acid, humic acid and potassium sulfate, and the mass percentages of the components are as follows: glutamic acid diacetic acid tetrasodium salt: citric acid: humic acid: potassium sulfate (2-3): 1: 1: (1-2).
Preferably, the microbial fermentation inoculum in the step (2) comprises the following components in parts by mass: 5-9 parts of pseudomonas aeruginosa, 1-3 parts of acetobacter, 0.2-0.6 part of lactic acid bacteria, 2-6 parts of paracoccus denitrificans, 4-8 parts of candida lipolytica and 7-12 parts of rhodococcus.
Preferably, the microbial fermentation inoculum in the step (2) comprises the following components in parts by mass: 6 parts of pseudomonas aeruginosa, 2 parts of acetobacter, 0.5 part of lactobacillus, 5 parts of paracoccus denitrificans, 7 parts of candida lipolytica and 8 parts of rhodococcus.
Preferably, the drying temperature of the soil in the step (2) is 40-55 ℃.
Preferably, the grain size of the soil sieved in the step (2) is less than or equal to 20 mm.
Preferably, the lamp cap of the LED lamp in step (3) adopts a blue wafer with a 435nm wave band, a yellow wafer with a 570nm wave band and a red wafer with a 635nm wave band.
Advantageous effects
1. According to the invention, the LED lamp is adopted to irradiate the soil, so that the activity of beneficial bacteria in the soil, such as bacillus, actinomycetes and methanobacterium who decompose organic matters and proteins, can be improved, the beneficial bacteria can quickly decompose pollutants, and the improvement of soil fertility is accelerated.
2. According to the invention, the soil surface is sprayed with an activating agent and a microbial fermentation inoculant, the activating agent is a mixture of tetrasodium glutamate diacetate, citric acid, humic acid and potassium sulfate, so that heavy metal ions in the soil can form a soluble chelate, the effect of removing heavy metals is excellent, the application prospect is wide, and meanwhile, the remediation of the organic polluted soil is promoted by providing nutrients for microorganisms and the like; the introduction of the microbial fermentation inoculum can greatly reduce the addition of chemical agents and improve the ecological function of the soil to a great extent.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
a method of remediating soil comprising the steps of:
(1) collecting a soil sample, and manually removing weeds, shrubs and stone sundries in the soil;
(2) spraying an activating agent and a microbial fermentation inoculant on the surface of the soil in the step (1), wherein the activating agent is a mixture of tetrasodium glutamate diacetate, citric acid, humic acid and potassium sulfate, and the mass percentages of the components are as follows: glutamic acid diacetic acid tetrasodium salt: citric acid: humic acid: 2 parts of potassium sulfate: 1: 1: 1, the microbial fermentation inoculant comprises the following components in parts by weight: 5 parts of pseudomonas aeruginosa, 1 part of acetobacter, 0.2 part of lactobacillus, 2 parts of paracoccus denitrificans, 4 parts of candida lipolytica and 8 parts of rhodococcus; then sequentially crushing, stirring, drying and sieving the soil, wherein the drying temperature is 45 ℃, and the particle size of the sieved soil is less than or equal to 15 mm;
(3) irradiating the screened soil for 20min by using an LED illuminator, and turning the soil once every 1min, wherein a blue light wafer with a 435nm wave band, a yellow light wafer with a 565nm wave band and a red light wafer with a 630nm wave band are adopted as lamp caps of the LED lamp.
Example 2:
a method of remediating soil comprising the steps of:
(1) collecting a soil sample, and manually removing weeds, shrubs and stone sundries in the soil;
(2) spraying an activating agent and a microbial fermentation inoculant on the surface of the soil in the step (1), wherein the activating agent is a mixture of tetrasodium glutamate diacetate, citric acid, humic acid and potassium sulfate, and the mass percentages of the components are as follows: glutamic acid diacetic acid tetrasodium salt: citric acid: humic acid: potassium sulfate 3: 1: 1: 1, the microbial fermentation inoculant comprises the following components in parts by weight: 6 parts of pseudomonas aeruginosa, 2 parts of acetobacter, 0.3 part of lactobacillus, 3 parts of paracoccus denitrificans, 4 parts of candida lipolytica and 9 parts of rhodococcus; then sequentially crushing, stirring, drying and sieving the soil, wherein the drying temperature is 50 ℃, and the particle size of the sieved soil is less than or equal to 18 mm;
(3) irradiating the screened soil for 22min by using an LED illuminator, and turning the soil once every 2min, wherein a lamp cap of the LED lamp adopts a 437nm wave band blue light wafer, a 568nm wave band yellow light wafer and a 637nm red light wafer.
Example 3:
a method of remediating soil comprising the steps of:
(1) collecting a soil sample, and manually removing weeds, shrubs and stone sundries in the soil;
(2) spraying an activating agent and a microbial fermentation inoculant on the surface of the soil in the step (1), wherein the activating agent is a mixture of tetrasodium glutamate diacetate, citric acid, humic acid and potassium sulfate, and the mass percentages of the components are as follows: glutamic acid diacetic acid tetrasodium salt: citric acid: humic acid: 2 parts of potassium sulfate: 1: 1: 2, the microbial fermentation inoculant comprises the following components in parts by weight: 8 parts of pseudomonas aeruginosa, 3 parts of acetobacter, 0.4 part of lactobacillus, 4 parts of paracoccus denitrificans, 6 parts of candida lipolytica and 9 parts of rhodococcus; then sequentially crushing, stirring, drying and sieving the soil, wherein the drying temperature is 50 ℃, and the particle size of the sieved soil is less than or equal to 20 mm;
(3) irradiating the screened soil for 30min by using an LED illuminator, and turning the soil once every 2min, wherein a blue light wafer with 439nm wave band, a yellow light wafer with 572nm wave band and a red light wafer with 642nm wave band are adopted as lamp caps of the LED lamp.
Example 4:
a method of remediating soil comprising the steps of:
(1) collecting a soil sample, and manually removing weeds, shrubs and stone sundries in the soil;
(2) spraying an activating agent and a microbial fermentation inoculant on the surface of the soil in the step (1), wherein the activating agent is a mixture of tetrasodium glutamate diacetate, citric acid, humic acid and potassium sulfate, and the mass percentages of the components are as follows: glutamic acid diacetic acid tetrasodium salt: citric acid: humic acid: 2 parts of potassium sulfate: 1: 1: 2, the microbial fermentation inoculant comprises the following components in parts by weight: 7 parts of pseudomonas aeruginosa, 3 parts of acetobacter, 0.5 part of lactobacillus, 5 parts of paracoccus denitrificans, 8 parts of candida lipolytica and 12 parts of rhodococcus; then sequentially crushing, stirring, drying and sieving the soil, wherein the drying temperature is 50 ℃, and the particle size of the sieved soil is less than or equal to 15 mm;
(3) irradiating the screened soil for 25min by using an LED illuminator, turning the soil once every 1min, and adopting a blue light wafer with a 440nm wave band, a yellow light wafer with a 575nm wave band and a red light wafer with a 645nm wave band as lamp caps of LED lamps.
Example 5:
a method of remediating soil comprising the steps of:
(1) collecting a soil sample, and manually removing weeds, shrubs and stone sundries in the soil;
(2) spraying an activating agent and a microbial fermentation inoculant on the surface of the soil in the step (1), wherein the activating agent is a mixture of tetrasodium glutamate diacetate, citric acid, humic acid and potassium sulfate, and the mass percentages of the components are as follows: glutamic acid diacetic acid tetrasodium salt: citric acid: humic acid: potassium sulfate 3: 1: 1: 2, the microbial fermentation inoculant comprises the following components in parts by weight: 6 parts of pseudomonas aeruginosa, 2 parts of acetobacter, 0.5 part of lactobacillus, 5 parts of paracoccus denitrificans, 7 parts of candida lipolytica and 8 parts of rhodococcus; then sequentially crushing, stirring, drying and sieving the soil, wherein the drying temperature is 55 ℃, and the particle size of the sieved soil is less than or equal to 20 mm;
(3) and (3) irradiating the screened soil for 30min by using an LED illuminator, turning the soil once every 2min, wherein a blue light wafer with a 435nm wave band, a yellow light wafer with a 570nm wave band and a red light wafer with a 635nm wave band are adopted as lamp caps of the LED lamp.
In summary, the existing soil remediation method is used as a control group, the method for remedying soil of the present invention is used as an experimental group, the remediation conditions of the soil of the control group and the soil of the examples 1 to 5 of the present invention are compared, and under the same conditions, the index data of each item is obtained as follows:
| cadmium content (mg/kg) | Organic matter content (g/kg) | |
| Control group | 4.218 | 75 |
| Example 1 | 2.316 | 28 |
| Example 2 | 2.153 | 23 |
| Example 3 | 2.541 | 26 |
| Example 4 | 2.019 | 22 |
| Example 5 | 2.205 | 19 |
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A method of remediating soil comprising the steps of:
(1) collecting a soil sample, and manually removing weeds, shrubs and stone sundries in the soil;
(2) spraying an activating agent and a microbial fermentation inoculant on the surface of the soil in the step (1), and then sequentially crushing, stirring, drying and sieving the soil;
(3) and (3) irradiating the sieved soil for 20-30 min by using an LED illuminator, turning the soil once every 1-2 min, wherein a lamp cap of the LED lamp adopts a blue light wafer with a wave band of 435-440 nm, a yellow light wafer with a wave band of 565-575 nm and a red light wafer with a wave band of 630-645 nm.
2. The method for remediating soil as recited in claim 1, wherein the activating agent in the step (2) is a mixture of tetrasodium glutamate diacetate, citric acid, humic acid, and potassium sulfate, and the mass percentages of the components are as follows: glutamic acid diacetic acid tetrasodium salt: citric acid: humic acid: potassium sulfate (2-3): 1: 1: (1-2).
3. The method for remediating soil as recited in claim 1, wherein the microbial fermentation inoculum in the step (2) comprises the following components in parts by mass: 5-9 parts of pseudomonas aeruginosa, 1-3 parts of acetobacter, 0.2-0.6 part of lactic acid bacteria, 2-6 parts of paracoccus denitrificans, 4-8 parts of candida lipolytica and 7-12 parts of rhodococcus.
4. The method for remediating soil as recited in claim 3, wherein the microbial fermentation inoculum in the step (2) comprises the following components in parts by mass: 6 parts of pseudomonas aeruginosa, 2 parts of acetobacter, 0.5 part of lactobacillus, 5 parts of paracoccus denitrificans, 7 parts of candida lipolytica and 8 parts of rhodococcus.
5. The method for remediating soil as recited in claim 1, wherein the drying temperature of the soil in the step (2) is 40-55 ℃.
6. The method for remediating soil as recited in claim 1, wherein the soil sieved in the step (2) has a particle size of 20mm or less.
7. The method for remediating soil as recited in claim 1, wherein the LED lamp in step (3) is provided with a blue wafer with a 435nm wavelength band, a yellow wafer with a 570nm wavelength band and a red wafer with a 635nm wavelength band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440199.4A CN111229822A (en) | 2018-11-29 | 2018-11-29 | Soil remediation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440199.4A CN111229822A (en) | 2018-11-29 | 2018-11-29 | Soil remediation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111229822A true CN111229822A (en) | 2020-06-05 |
Family
ID=70866650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811440199.4A Pending CN111229822A (en) | 2018-11-29 | 2018-11-29 | Soil remediation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111229822A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116254117A (en) * | 2023-05-16 | 2023-06-13 | 东北农业大学 | Rice field methane emission inhibitor and method for reducing rice field methane emission |
-
2018
- 2018-11-29 CN CN201811440199.4A patent/CN111229822A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116254117A (en) * | 2023-05-16 | 2023-06-13 | 东北农业大学 | Rice field methane emission inhibitor and method for reducing rice field methane emission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9333382B2 (en) | Enhanced combination method for phytoremediation of petroleum contaminated soil by Impatiens balsamina L. associated with the indigenous microorganisms | |
| Singh et al. | Microorganisms in the conversion of agricultural wastes to compost | |
| CN109181704B (en) | Soil heavy metal and organic pollution remediation agent and preparation and application methods thereof | |
| CN110681692B (en) | Method for repairing heavy metal contaminated soil | |
| CN110564425A (en) | heavy metal contaminated soil remediation agent and preparation method and use method thereof | |
| CN108311533A (en) | Utilize the method for heavy metal in biomass carbon-plant-microorganism joint rehabilitating soil | |
| CN110814005A (en) | Method for restoring soil polluted by heavy metal cadmium in northern farmland | |
| CN113149751A (en) | Foliage resistance and control agent for reducing arsenic and cadmium in rice and preparation method thereof | |
| CN112209778A (en) | Novel slag soil conditioner and preparation method thereof | |
| CN108586115B (en) | Preparation method of self slow-release seaweed fertilizer capable of degrading organic pollutants | |
| CN115259965A (en) | Method for realizing paddy soil live selenium and cadmium passivation by utilizing microbial regulation | |
| CN111229822A (en) | Soil remediation method | |
| Ganesh et al. | Organic soil amendments: potential source for heavy metal accumulation | |
| CN102744247A (en) | Method for restoring petroleum-contaminated soil by using Trifolium repens Linn | |
| Ahirwar et al. | Biodegradation of chromium contaminated soil by some bacterial species | |
| CN111656900A (en) | Method for repairing heavy metal cadmium and continuous cropping obstacles in facility agriculture soil | |
| CN101298080A (en) | Farming technique for repairing farmland soil polluted by polycyclic aromatic hydrocarbon | |
| Lindeboom | Chemical and microbiological aspects of the nitrogen cycle on Marion Island (sub-Antarctic) | |
| Cappon | Content and chemical form of mercury and selenium in soil, sludge, and fertilizer materials | |
| Zwart | Fate of C and N pools–experience from short and long term compost experiments | |
| CN111530902A (en) | Method for in-situ remediation of benzene series in soil by plant-microorganism-charcoal combined remediation technology | |
| CN112625966A (en) | Microbial fertilizer for effectively preventing and treating pear tree rot and prevention and treatment method | |
| CN112410043A (en) | Method for restoring heavy metal polluted farmland and conditioner | |
| CN111760905A (en) | Method for repairing cadmium-polluted soil by using plants and phytohormones together | |
| Ijah et al. | Biostimulation of crude oil contaminated soil using soybean waste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200605 |